* move Mocha-run tests to `test/mocha`

* fix relative paths

* fix JSX test paths

* update stagnated JSX tests

* `test/setup.js` -> `test/mocha/setup.js`

* use regex+globstar for test matching

* remove `console.log`

* swap `sanitize-html` for `dompurify`

* set up node enzyme tests with jsdom

dompurify, as the name suggests, needs a DOM or it won't work!

* reconcile tests and sanitizer settings

* remove obsolete sanitizeOptions

* add `jsdom` dependency